Published on in Vol 21, No 6 (2019): June
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/14158, first published
.
1 Department of Nutrition and Food Studies, George Mason University, Fairfax, VA, United States
2 University of Florida, UF Health Cancer Center, Gainesville, FL, United States
3 Westat, Rockville, MD, United States
*all authors contributed equally